The Massey product is a cohomology operation of higher order
introduced in [1]}, which generalizes the cup product. In
[2]}, May showed that the differentials in the Eilenberg-Moore
spectral sequence associated with the path-loop fibration of a path
connected, simply connected space are completely determined by
higher order Massey products. Kraines and Schochet [3]} also
described the differentials in Eilenberg-Moore spectral sequence by
Massey products. In order to describe the differentials \(d_{2t+3}\) 
(\(t\ge 1\) ) in terms of Massey products, we first recall briefly the
definition of Massey products (see [4]}, [2]}, [6]}, [7]}). Then the
main theorems in this paper will be shown.
